import auth from '@/plugins/auth'
import router, {
  constantRoutes,
  dynamicRoutes
} from '@/router'
import {
  getRouters
} from '@/api/menu'
import Layout from '@/layout/index'
import ParentView from '@/components/ParentView'
import InnerLink from '@/layout/components/InnerLink'


// 匹配views里面所有的.vue文件
const modules =
  import.meta.glob('/src/my-views/**/*.vue')

const usePermissionStore = defineStore(
  'permission', {
  state: () => ({
    routes: [],
    addRoutes: [],
    defaultRoutes: [],
    topbarRouters: [],
    sidebarRouters: []
  }),
  actions: {
    setRoutes(routes) {
      this.addRoutes = routes
      this.routes = constantRoutes.concat(routes)
    },
    setDefaultRoutes(routes) {
      this.defaultRoutes = constantRoutes.concat(routes)
    },
    setTopbarRoutes(routes) {
      this.topbarRouters = routes
    },
    setSidebarRouters(routes) {
      this.sidebarRouters = routes
    },
    generateRoutes(roles) {
      return new Promise(resolve => {
        // 向后端请求路由数据
        getRouters().then(res => {
          let datas = res.data.map(item => addMetaToMenu(item))
          const sdata = JSON.parse(JSON.stringify(datas))
          const rdata = JSON.parse(JSON.stringify(datas))
          const defaultData = JSON.parse(JSON.stringify(datas))
          const sidebarRoutes = filterAsyncRouter(sdata)
          const rewriteRoutes = filterAsyncRouter(rdata, false, true)
          const defaultRoutes = filterAsyncRouter(defaultData)
          const asyncRoutes = filterDynamicRoutes(dynamicRoutes)
          asyncRoutes.forEach(route => {
            router.addRoute(route)
          })
          this.setRoutes(rewriteRoutes)
          this.setSidebarRouters(constantRoutes.concat(sidebarRoutes))
          this.setDefaultRoutes(sidebarRoutes)
          this.setTopbarRoutes(defaultRoutes)
          resolve(sidebarRoutes)
        })
      })
    }
  }
})

// 添加meta对象的函数
function addMetaToMenu(menu) {
  if (!menu) return menu;

  // 创建当前节点的meta对象
  const meta = {
    title: menu.title || '',
    icon: menu.icon || null,
    noCache: false,
    link: null
  };

  // 添加meta属性
  menu.meta = meta;

  // 递归处理子节点
  if (menu.children && menu.children.length > 0) {
    menu.children.forEach(child => addMetaToMenu(child));
  }

  return menu;
}


// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap, lastRouter = false, type = false) {
  return asyncRouterMap.filter(route => {
    if (type && route.children) {
      route.children = filterChildren(route.children)
    }
    if (route.component) {
      // Layout ParentView 组件特殊处理
      if (route.component === 'Layout') {
        route.component = Layout
      } else if (route.component === 'ParentView') {
        route.component = ParentView
      } else if (route.component === 'InnerLink') {
        route.component = InnerLink
      } else {
        route.component = loadView(route.component)
      }
    }
    if (route.children != null && route.children && route.children.length) {
      route.children = filterAsyncRouter(route.children, route, type)
    } else {
      delete route['children']
      delete route['redirect']
    }
    return true
  })
}

function filterChildren(childrenMap, lastRouter = false) {
  var children = []
  childrenMap.forEach(el => {
    el.path = lastRouter ? lastRouter.path + '/' + el.path : el.path
    if (el.children && el.children.length && el.component === 'ParentView') {
      children = children.concat(filterChildren(el.children, el))
    } else {
      children.push(el)
    }
  })
  return children
}

// 动态路由遍历，验证是否具备权限
export function filterDynamicRoutes(routes) {
  const res = []
  routes.forEach(route => {
    if (route.permissions) {
      if (auth.hasPermiOr(route.permissions)) {
        res.push(route)
      }

    } else if (route.roles) {
      if (auth.hasRoleOr(route.roles)) {
        res.push(route)
      }

    }
  })
  return res


}

export const loadView = (view) => {
  const path = view.replace('@/', '/src/') + '.vue'
  return modules[path]

}

export default usePermissionStore